feat(effect): Add Effect v4 beta support#20395
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This PR is only renaming Effect v3 e2e tests, which had no versioning, to one with a version. This makes it easier in the future to distinguish between Effect v3 and v4 tests. So effectively this has changed: - `effect-node` -> `effect-3-node` - `effect-browser` -> `effect-3-browser`
This adds support to Effect v4, but also keeps the compatibility for v3.
There is no way that we can unit test against v3, as the
`devDependencies` need to use `effect@4` and an updated `@effect/vitest`
version, which is not compatible with Effect v3 (this is added in
The API for Effect v4 has changed a little, so there are safeguards to
detect if it is v3 or v4 and uses the correct API. The good part is that
for users nothing changed, so they still can use the same methods in
their app as before (ofc, respecting the new Effect v4 API).
Before (Effect v3):
```ts
const SentryLive = Layer.mergeAll(
Sentry.effectLayer({
dsn: '__DSN__',
tracesSampleRate: 1.0,
enableLogs: true,
}),
Layer.setTracer(Sentry.SentryEffectTracer),
Logger.replace(Logger.defaultLogger, Sentry.SentryEffectLogger),
Sentry.SentryEffectMetricsLayer,
);
```
After (Effect v4):
```js
const SentryLive = Layer.mergeAll(
Sentry.effectLayer({
dsn: '__DSN__',
tracesSampleRate: 1.0,
enableLogs: true,
}),
Layer.succeed(Tracer.Tracer, Sentry.SentryEffectTracer),
Logger.layer([Sentry.SentryEffectLogger]),
Sentry.SentryEffectMetricsLayer,
);
```
Both usages still work and are represented in the E2E tests.
![sentry[bot]](https://avatars.githubusercontent.com/in/12637?s=60&v=4){kind=small}
nicohrubec
approved these changes
Apr 21, 2026
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closes #20388
This PR adds support for Effect v4 - it also acts as umbrella PR for other PRs, so it is easier to review and digest. All information of each functionality can be viewed in the PRs of each squashed commit